Summer Solstice 2025 Northern Hemisphere Location. On the day of the autumn (september) equinox, the sun, moving along the ecliptic, crosses the. On the day of the autumn (september) equinox, the sun, moving along the ecliptic, crosses the celestial.
On the day of the autumn (september) equinox, the sun, moving along the ecliptic, crosses the celestial. Edt (0241 gmt on june 21), and the summer solstice for the southern hemisphere.